Each year since 2008 I have been a tutor at the UKMT National Mathematics Summer School.
This is a five-day residential summer school for students aged 15 and 16.
It is a nice opportunity to introduce able students to mathematics beyond the school curriculum, and especially how to think like a mathematician.
Topics I have taught include *inequalities*, *cyclic quadrilaterals*, the *pigeonhole principle*, and *graph theory*.

I am a marker for the British Mathematical Olympiad and the UK Mathematical Olympiad for Girls, both organised by the United Kingdom Mathematics Trust.

During my PhD in Orsay, I participated as a jury member and team leader in the Tournoi FranÃ§ais de Jeunes MathÃ©maticien(ne)s (2012 and 2013) and in the International Tournament of Young Mathematicians (2012). In these competitions, students in their final year of secondary school work in teams of five over a period of several months to solve open-ended problems set by the organisers, and then present their work at a regional, national or international event.